Interim Part-Time Bookkeeper

UHY-US; St. Louis (MO); On-site; USD 28,000 - 44,000; Part time

Job summary

UHY Advisors' Resource Solutions Group is seeking an Interim Bookkeeper for a temporary, onsite role in Missouri. The position is part-time, offering 20-25 hours per week, and requires strong AP/AR, payroll, and Deltek experience.

The candidate will manage billing cycles, track project time with Deltek, and assist with project accounting and PoC methods. The role supports project managers and ownership, with room for expanding responsibilities over time.

Qualifications

• Manage accounts payable, accounts receivable, payroll, and general financial record-keeping.
• Oversee invoicing cycle on a four-week cadence.
• Track project time by phase and task using Deltek.
• Prepare, review, and adjust draft project invoices with project managers.
• Support billing for fixed-fee and hourly projects using PoC methods.
• Track consultant/subcontractor disbursements across multiple projects.
• Reconcile project billing, payments, expenses, and related records.
• Maintain accurate accounting documentation and records.

Responsibilities

• Handle AP/AR, payroll, and general ledger tasks.
• Process and review invoices on a four-week cycle.
• Monitor time and costs by project phase for PoC billing.
• Assist with drafting and finalizing project invoices.
• Support billing for fixed-fee and hourly projects.
• Manage consultant payments and subvendor disbursements.
• Ensure accurate reconciliation of billing, payments, and expenses.
• Keep organized financial records and respond to discrepancies.

Skills

AP/AR experience

Payroll experience

Deltek proficiency

Project accounting

Percentage-of-completion accounting

Attention to detail

Independent work

Tools

Deltek

Job description

A great UHY client is seeking an Interim Bookkeeper. The ideal candidate will have strong AP/AR and payroll experience, percentage-of-completion accounting knowledge, and mandatory Deltek proficiency.

The Interim Bookkeeper role is a temporary position that is onsite. This is position is part time with 20-25 hours per week.

• Manage accounts payable, accounts receivable, payroll, and general financial record-keeping.
• Oversee incoming and outgoing financial transactions on a recurring four-week invoicing cycle.
• Track project time by phase and task using Deltek.
• Prepare, review, and adjust draft project invoices in collaboration with project managers.
• Support billing for both fixed-fee projects using percentage-of-completion methods and hourly projects.
• Track and manage consultant and subcontractor disbursements across multiple projects, including projects with numerous specialty consultants.
• Reconcile project billing, payments, expenses, and related financial records.
• Manage recurring operational expenses, including rent, insurance, and vendor fees.
• Maintain accurate and organized accounting documentation and records.
• Identify discrepancies and resolve billing, payment, and accounting issues in a timely manner.
• Work closely with project managers and ownership to ensure accurate and timely financial information.
• Help streamline accounting processes and improve efficiency as the business grows.
• Provide general administrative support as needed.
• As the role develops, assist with minor HR administration, licensing tracking, and other operational responsibilities.
• Solid bookkeeping experience managing AP, AR, payroll, and general financial records.
• Deltek proficiency is required.
• Experience with project accounting and percentage-of-completion accounting.
• Ability to manage complex consultant payments and project-related disbursements.
• Strong attention to detail and accuracy when handling financial transactions and billing.
• Experience with general accounting software and financial systems.
• Highly reliable, proactive, and able to take ownership of responsibilities independently.
• Strong communication skills and the ability to work effectively with project managers and ownership.
• Ability to manage multiple projects, deadlines, and recurring billing cycles.
• Experience streamlining accounting processes is preferred.
• Willingness and ability to take on additional administrative, licensing, or minor HR responsibilities as needed.
• Comfortable working in a small, close-knit organization where the Bookkeeper has a meaningful impact on day-to-day business operations.
• Flexible and adaptable approach with the ability to support the role as responsibilities evolve.

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UHY Advisors' Resource Solutions Group provides clients with accomplished professionals to support finance, accounting, internal audit and tax teams. Whether it is permanent placement, project work, loaned staff support or business process outsourcing–we are ready to meet your needs.

Our team has extensive experience with a wide range of clients from middle market, closely held organizations to large Fortune 500 companies. We focus on finance and accounting, internal audit, IT audit and tax. We offer direct, personal involvement from senior practitioners and strive to meet clients' needs rapidly.